官方文档参考：https://learn.microsoft.com/zh-cn/microsoft-edge/webview2/get-started/win32
Webview2依赖的头文件和库
头文件主要为：WebView2和WixLibrary，存储在include/external
![[图片]](https://web.laikanjuba.com/d/file/2024/05-14/535ed7784a38cbe21bbf96bec41aefdd.png)
![[图片]](https://web.laikanjuba.com/d/file/2024/05-14/70359f2d47ea229e5c0581bf0d8374a5.png)
库主要为：WebView2LoaderStatic.lib和WebView2Loader.dll，存储在lib/external
![[图片]](https://web.laikanjuba.com/d/file/2024/05-14/6355cfcbe1e1320721323d1127120fc1.png)
初始化项目加载webview2
CMakeLists文件
#工程名project(uXXXXSoftware)#cmake最低版本cmake_minimum_required(VERSION 3.17)#设定cmake模块的路径set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake # 项目cmake ${PROJECT_SOURCE_DIR}/cmake/base # 通用cmake ${CMAKE_MODULE_PATH})#加载配置项include(set_env)#加载项目配置include(init_project)#加载编译配置include(set_compile_arg)base/set_env.cmake
message(STATUS "====================set_env.cmake===================")# 处理编译字符集问题add_compile_options("$<$<C_COMPILER_ID:MSVC>:/utf-8>")add_compile_options("$<$<CXX_COMPILER_ID:MSVC>:/utf-8>")#C++标准set(CMAKE_CXX_STANDARD 11)# 开启QT用于预处理的组件set(CMAKE_AUTOMOC ON)set(CMAKE_AUTORCC ON)set(CMAKE_AUTOUIC ON)#设置全局系统变量set(PROJECT_EXTERNAL_DIR "D:/MyCPP")set(PROJECT_EXTERNAL_INCLUDE_DIR "${PROJECT_EXTERNAL_DIR}/include/external")set(PROJECT_EXTERNAL_LIB_DIR "${PROJECT_EXTERNAL_DIR}/lib/external")message(STATUS "PROJECT_EXTERNAL_INCLUDE_DIR is ${PROJECT_EXTERNAL_INCLUDE_DIR}")message(STATUS "PROJECT_EXTERNAL_LIB_DIR is ${PROJECT_EXTERNAL_LIB_DIR}")#配置QT位置message(STATUS "CMAKE_SYSTEM_NAME is ${CMAKE_SYSTEM_NAME}")if (CMAKE_SYSTEM_NAME MATCHES "Windows") #下面是Windows下Qt的默认前缀 set(CMAKE_PREFIX_PATH "D:/Library/Qt5.14.2/5.14.2/msvc2017_64/lib/cmake")elseif (CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64" AND CMAKE_SYSTEM_NAME MATCHES "Linux") #下面是aarch64 Linux下Qt的默认前缀 set(CMAKE_PREFIX_PATH /opt/Qt5.14.2_aarch64/)elseif (CMAKE_SYSTEM_NAME MATCHES "Linux") #下面是Linux x64下Qt的默认前缀 set(CMAKE_PREFIX_PATH /opt/Qt5.14.2/5.14.2/gcc_64)endif ()message(STATUS "CMAKE_PREFIX_PATH is ${CMAKE_PREFIX_PATH}")message(STATUS "====================set_env.cmake end===================")init_project.cmake
message(STATUS "====================init_project.cmake===================")# 查找QT的模块find_package(Qt5 COMPONENTS Core Gui Widgets REQUIRED)#外部头文件的路径include_directories(SYSTEM ${PROJECT_EXTERNAL_INCLUDE_DIR})#外部库文件的路径link_directories(${PROJECT_EXTERNAL_LIB_DIR})# 把目录Packages/MainFrame/src下面的所有文件作为变量存储aux_source_directory(Packages/MainFrame/src SOURCES)# 添加源文件add_executable(uXXXXSoftware ${SOURCES})# 添加模块target_link_libraries(uXXXXSoftware Qt5::Core Qt5::Gui Qt5::Widgets WebView2LoaderStatic)message(STATUS "====================init_project.cmake end===================")base/set_compile_arg.cmake
message(STATUS "====================set_compile_arg.cmake===================")# 默认的编译配置（可选）if (WIN32 AND NOT DEFINED CMAKE_TOOLCHAIN_FILE) set(DEBUG_SUFFIX) if (MSVC AND CMAKE_BUILD_TYPE MATCHES "Debug") set(DEBUG_SUFFIX "d") endif () set(QT_INSTALL_PATH "${CMAKE_PREFIX_PATH}") if (NOT EXISTS "${QT_INSTALL_PATH}/bin") set(QT_INSTALL_PATH "${QT_INSTALL_PATH}/..") if (NOT EXISTS "${QT_INSTALL_PATH}/bin") set(QT_INSTALL_PATH "${QT_INSTALL_PATH}/..") endif () endif () if (EXISTS "${QT_INSTALL_PATH}/plugins/platforms/qwindows${DEBUG_SUFFIX}.dll") add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD COMMAND ${CMAKE_COMMAND} -E make_directory "$<TARGET_FILE_DIR:${PROJECT_NAME}>/plugins/platforms/") add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD COMMAND ${CMAKE_COMMAND} -E copy "${QT_INSTALL_PATH}/plugins/platforms/qwindows${DEBUG_SUFFIX}.dll" "$<TARGET_FILE_DIR:${PROJECT_NAME}>/plugins/platforms/") endif () foreach (QT_LIB Core Gui Widgets) add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD COMMAND ${CMAKE_COMMAND} -E copy "${QT_INSTALL_PATH}/bin/Qt5${QT_LIB}${DEBUG_SUFFIX}.dll" "$<TARGET_FILE_DIR:${PROJECT_NAME}>") endforeach (QT_LIB)endif ()message(STATUS "====================set_compile_arg.cmake end===================")main函数
#pragma execution_character_set("utf-8")#include <QApplication>#include <QFont>#include "main_windows.h"int main(int argc, char *argv[]) { QApplication a(argc, argv); //设置字体 QFont font; font.setFamily("Microsoft Yahei UI"); font.setPixelSize(13); a.setFont(font); MainWindow mainWindow; mainWindow.show(); return QApplication::exec();}MainWindow函数
#include "main_windows.h"#include "main_windows_layout.h"#include "web_display_widget.h"MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) { this->setWindowTitle("XXXX"); this->resize(1024, 960); QWidget* centralWidget = new QWidget(this); auto webview2Widget = new WebDisplayWidget(centralWidget); webview2Widget->resize(1024, 960); this->setCentralWidget(centralWidget);}WebDisplayWidget，显示web的widget核心函数
web_display_widge.h
#pragma execution_character_set("utf-8")#include <wrl.h>#include <QWidget>#include "WixLibrary/wil/com.h"#include "WebView2/WebView2.h"class WebDisplayWidget : public QWidget {public: WebDisplayWidget(QWidget *parent = nullptr); ~WebDisplayWidget() override;public: HRESULT OnEnvironmentCompleted(HRESULT result, ICoreWebView2Environment *env); HRESULT OnControllerCompleted(HRESULT result, ICoreWebView2Controller *controller); HRESULT OnNavigationStarting(ICoreWebView2 *sender, ICoreWebView2NavigationStartingEventArgs *args); HRESULT OnNavigationCompleted(ICoreWebView2 *sender, ICoreWebView2NavigationCompletedEventArgs *args); HRESULT OnWebResourceRequested(ICoreWebView2 *sender, ICoreWebView2WebResourceRequestedEventArgs *args);private: void InitWebView2();private: wil::com_ptr<ICoreWebView2Controller> m_webViewController; wil::com_ptr<ICoreWebView2> m_webView; EventRegistrationToken m_navigationStartingToken; EventRegistrationToken m_navigationCompletedToken; EventRegistrationToken m_webResourceRequestedToken;};web_display_widget.cpp
#include "web_display_widget.h"WebDisplayWidget::WebDisplayWidget(QWidget *parent) : QWidget(parent) { InitWebView2();}WebDisplayWidget::~WebDisplayWidget() {}void WebDisplayWidget::InitWebView2() { CreateCoreWebView2EnvironmentWithOptions(nullptr, nullptr, nullptr, Microsoft::WRL::Callback<ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler>( [this](HRESULT result, ICoreWebView2Environment *env) -> HRESULT { return OnEnvironmentCompleted(result, env); } ).Get());}HRESULT WebDisplayWidget::OnEnvironmentCompleted(HRESULT result, ICoreWebView2Environment *env) { env->CreateCoreWebView2Controller(reinterpret_cast<HWND>(this->winId()), Microsoft::WRL::Callback<ICoreWebView2CreateCoreWebView2ControllerCompletedHandler>( [this](HRESULT result, ICoreWebView2Controller *controller) -> HRESULT { return OnControllerCompleted(result, controller); }).Get()); return S_OK;}HRESULT WebDisplayWidget::OnControllerCompleted(HRESULT result, ICoreWebView2Controller *controller) { if (controller == nullptr) { return S_FALSE; } //初始化webview2的依赖对象 m_webViewController = controller; m_webViewController->get_CoreWebView2(&m_webView); //定义窗口 RECT rect = {0, 0, this->width(), this->height()}; m_webViewController->put_Bounds(rect); //导航地址 m_webView->Navigate(L"https://www.baidu.com"); //开始 m_webView->add_NavigationStarting( Microsoft::WRL::Callback<ICoreWebView2NavigationStartingEventHandler>( [this](ICoreWebView2 *webview, ICoreWebView2NavigationStartingEventArgs *args) -> HRESULT { return OnNavigationStarting(webview, args); }).Get(), &m_navigationStartingToken); //完成 m_webView->add_NavigationCompleted( Microsoft::WRL::Callback<ICoreWebView2NavigationCompletedEventHandler>( [this](ICoreWebView2 *webview, ICoreWebView2NavigationCompletedEventArgs *args) -> HRESULT { return OnNavigationCompleted(webview, args); }).Get(), &m_navigationCompletedToken); m_webView->add_WebResourceRequested( Microsoft::WRL::Callback<ICoreWebView2WebResourceRequestedEventHandler>( [this](ICoreWebView2 *webview, ICoreWebView2WebResourceRequestedEventArgs *args) -> HRESULT { return OnWebResourceRequested(webview, args); }).Get(), &m_webResourceRequestedToken); return 0;}HRESULT WebDisplayWidget::OnNavigationStarting(ICoreWebView2 *sender, ICoreWebView2NavigationStartingEventArgs *args) { return S_OK;}HRESULTWebDisplayWidget::OnNavigationCompleted(ICoreWebView2 *sender, ICoreWebView2NavigationCompletedEventArgs *args) { return S_OK;}HRESULTWebDisplayWidget::OnWebResourceRequested(ICoreWebView2 *sender, ICoreWebView2WebResourceRequestedEventArgs *args) { return S_OK;}
